When it comes to selecting the right makeup for your unique complexion, the best choice isn't always as simple as matching your skin tone. While foundation should mimic your natural coloring, concealer, blush, bronzer and lipstick leave plenty of room for error. If you're anything like me, you've got a whole stash of makeup mistakes!

Enter a growing crop of self-adjusting formulas, skin-sensing makeup designed to take the guesswork out of choosing your best shades. The smart blends react with your body chemistry to create custom results that suit your skin perfectly. Best of all, the self-adjusting stuff means you can potentially wear the same hue from season to season. Here are a few of our favorites and what makes them so effective:

Almay Smart Shade Concealer: Almay’s gentle skin-matching concealer comes in three shades, all of which start out in varying degrees of milky grey that blend down to suit your skin tone. Best for those in search of lightweight, natural coverage, this non-comedogenic neutralizer camouflages minor blemishes and discoloration without looking caked on.

Duwop Private Red: Another pH sensitive blend, this vibrant red lipstick is made with a fusion of pigments–annatto, hibiscus, and henna–that adapt to suit your individual coloring within five minutes of wear. Moisturizing and long lasting, Private Red leaves behind a rich stain hours after application.